Jean-Léon Gérôme – Reception of the Ambassadors of Siam by Napoleon III and Empress Eugénie at Fontainebleau Châteaux on June 27, 1861 Château de Versailles

The picture has something of this: people, group, many, church, pope, priest, ceremony, woman, leader, cross, god, prayer, saint, religious, Easter, spirituality, indoors.
Perhaps it’s a painting of a group of people standing and sitting in front.